Study on Neuropsychiatric Behavior in Cadmium-exposed People

1\) Test the blood and urine components of all subjects to evaluate the damage to kidney function caused by excessive cadmium. 2) Conduct MRI examinations on all subjects to evaluate changes in brain functional connectivity, metabolism, and structure after excessive cadmium exposure. 3) Conduct bone density examinations on all subjects to evaluate changes in bone density after excessive cadmium exposure. (3) Clinical psychiatric assessment: All subjects will be assessed on their mental and psychological conditions such as pain, cognitive function, depression, anxiety, mania, sleep quality, and suicide risk.